Shoe for tires.



W. L. CHRISTIAN & P. BARKER.

SHUE FOR TIRES.

APPLICATION FILED DEc.6,1915.

Patented Apr. 10, 191?.

` and the ground, the tires :e or nos SHOE FR '1i bans.

specicaters Patent. Patented dipl. d@ 1Std?.

Application filed necember 6, 1915. termi No. 165,267.:

To all whom t may concern:

both. citizens of at Los Angeles 'rien and Prmur Bannon, the United States, residing in the county of Los Angeles and State of California, have invented new and useful Improvements in Shoes for Tires, of which the following is a specification.

'ihis invention relates to a shoe for tires.

lt is an object of this invention to provide an attachment for tires which will increase the area of the tread surface.

lt is a further object to provide a detachable shoe for be easily attached and detached and can'be folded into a vcompact space.

ln the use of tires with motor vehicles upon sandy ground or upon loose soil it is found that the tractive adhesion is so small that the` wheels will spin. This is due to the small area of contact between the tire being of substantially circular cross section. ln order to increase the adhesion we have found it expedient to increase the area of contact and accomplish this by applying a shoe which will give a substantially fiat bearing surface.

W e have illustrated an embodiment of our invention inthe accompanying drawing, 1in.

which: t

Figure 1 is a section through a tire, and the felly of a wheel showing our improved shoe secured thereto.

Fig. 2 is a plan view of a fragment shoe in open position.

Fig. 3 is a sectional view through the shoe ready to fold for storage.

More particularly, 4 indicates the felly of a wheel to which the spokes 5 are connected, and 6 the wheel rim which is herein shown as being of the clencher type. The type hfv rim orof wheel is not a feature of our invention. A. well known type of pneumatic tire is here'illustrated, being composedof an outer casing 7 and an inner tube 8. The outer casing is formed with beads 9 and 10 suitable for engagement by the clencher rim 6. Our shoe is adaptable to any type of tire which has a body which in cross section has a rounded crown or trea portion.

'lhe shoe comprises a belt or ply 11, preferably formed of canvas or duck and which is so constructed that it will extend about the periphery of the tire. Secured to the belt which forms one ply are pockets 12 cfa `cures the pockets l2 and 13, pl portion tires which is exible and may and holding it l country orv upon sandy roads.

d posed against I and 13. These may be formed of the same Be 1t known thatwe, WinmAM L. CHRIS- stitching is so made that a collapsible pocket is formed. .To increase the wearing qualities of the tire, and also the strength, a peripheral tread piece 17 is secured to the ply 11 and the stitching 16 made so that it se- 11 and tread 17 to each other.Y 'l e pockets 12 and 13 have a iillinglS and 19 which may be of sand, rope or anyother suitable packlng material. We have shown the belt 11 as formed with eyes 20 to receive lacing 21 for the purpose of securing` the shoe to the tire. Any other suitable means may be used instead of eyeletsand lacing.

'llo apply the shoe to the tire it is laid peripherally about the tire with the pockets 12 and 13 over-hanging the sides, as indicated m Fig. 1, thereby raising a portion of the ply 11 and forming a bearing surface relatively dat, and of large area. The ends of the belt 11 extend over the sides of the tire and the lacing 21 is the eyelets 20 engaging the wheel felly, thereby securing the shoe about the tire firmly in position. When detached from the tire the shoe may be fiattened, as shown in Figs. 2 and 3, and folded into a very compact space to be stored away.

Our invention is especially useful in desert 1n such places the wheels of a truck or automobile sink in and stall the machine.` shoe ofers a greater bearing surface and greater tractive adhesion, thereby overcoming the above mentioned diculty.

at we claim is:

1. A shoe for tires, comprising a dexible belt adapted to extend peripherally about a tire, said belt formed with a collapsible pocket projecting from one surface and extending longitudinally `of uthe belt, removable illing in said pocket of a character to adjustably conform to tires of dierent curvatures, said pocket adapted to be disthe concave rtion of the tire, and means for detachab y securing the belt to said tire.

2. A shoe lfor tires, comprising a dexible belt adapted to extend peripherally about a tire, said belt formedl with complementary collapsible pockets projecting from one surinserted through face and extending longitudinally of` the belt, removable filling in said pockets of a character t0 adjustably conform to tires of different.curvatures, said pockets adapted to be diposed across the concave portion of the tire whereby a flat treadi surface is formed, and means for detachably -securing the belt to the tire.

3. A shoe for tires, comprising a belt adapted to extend peripherally'about a tire, said belt including a ply of flexible material,

p complementary' pockets disposed upon one surface and extending longitudinally of said belt, each pocket formed by folding a strip of flexible material upon itself and securing the latter to said ply, removable filling in said pockets of a character to adjustably conformto tires of different curvatures, said pockets adapted to be disposed against the concave portion of the tire whereby a flat tread'surface is formed, and means for detachably securing the belt to the tire.

In witness that we -claim the foregoing we have hereunto subscribed our names this 22d day of November, 1915.

WILLIAM L. CHRISTIAN. PHILIP BARKER. 

